Philip bohan



(No Model.)

P. ROI-IAN.

FEED WATER HEATER.

No. 316,297. Patented Apr. 21, 1885.

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UNITED STATES.

PATENT OFFICE.

PHILIP ROHAN, OF ST. LOUIS, MISSOURI.

FEED-WATER H EATER.

SPECIFICATION forming part of Letters Patent No. 316,297, dated April 21, 1885. Application filed December 20, 1884. '(No model.)

To all whom it may concern.-

Be it known that I, PHILIP ROHAN, of the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Feed-Water Heaters, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, and in which- Figure 1 is a vertical section of my improved heater. Fig. 2 is a horizontal section taken on line 2 2, Fig. 1. Fig. 3is a horizontal section taken on line 3 3, Fig. 1.

My invention relates to an improved apparatus for heating feed-water for steam-boilers, &c.; and my'invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Referring to the drawings, A represents a receiver adapted to hold water at its lower end, and within which is a case, B, between which and the receiver is a water-chamber, G, and steam-chamber D, formed by rings I,

' riveted to the case and receiver, as shown in Fig. l.

Communicating with the chamber D is a steam-pipe, J, and "the steam entering this chamber passes down through tubes L to the water in the bottom of the receiver, the tubes passing through the water-chamber O. The course of the steam is indicated by featherless arrows, Fig. 1. The water from the bottom of the receiver is taken by a pump through a pipe, N, and discharged into the chamber 0, where it is taken to the boiler through a pipe, 0.

The case B has'a head, P, on its upper end, and it is open at its'lower end. Within it are a number of pans, T and U, supported on vertical rods V. The pans T are larger than those U, and have central openings, as shown.

Above the pans, within the case, is a tank, W, receiving cold water from a supply-pipe, X. As the water runs over the edge of this tank, it falls, as indicated by the full arrows, into the pan T, through the central opening of which it falls into the pan U beneath, and is discharged over the outer edge of this pan into the next pan, T, and so on down until it is discharged from the last pan into the water-chamber at the bottom of the receiver. The steam that is not condensed by coming in contact with the water in this lower chamber passes up through the case B and exhausts througha pipe, Y, in the head of the case, thus coming in contact with and heating the pans and water as it falls from one pan to another in its passage from tank W to the bottom of the receiver.

It will thus be seen that with my improved heater the water will first be heated as it passes from the tank to the bottom of the re ceiver, and further heated by the steam discharged through the pipes or tubes L while it is in the bottom of the receiver, and further heated by coming in contact with the tubes L as it circulates through the chamber 0 from the pipe N to the pipe 0, so thatby the time it is discharged from the apparatus it is thoroughly heated.

I claim as my invention- 1. In a feed-water heater, the combination of the receiver having a steam-space at top and a water-space at bottom, a water-jacket located within said receiver between said steam and water spaces, fines or tubes passing through said water-jacket and connecting said steam and water spaces, a vertical passage through which the exhaust-steam ascends, and a cold-water-supply pipe discharging into the upper portion'of said passage, whereby the water is made to descend in opposition to the upward current of steam, substantially as set forth.

2. In a feed-water heater, the combination of the receiver adapted to contain water at its lower end, a case located within the receiver and connected thereto by rings, forming a water and a steam chamber, tubes forming a communication between the steam-chamber and the lower part of the receiver through the water-chamber, and drip-pans within the case, all arranged and operating substantially as shown and described, for the purpose set forth.

3. In a feed-water heater, the combination of the receiver adapted to contain water at its lower end, a case located within the rethe pans, ail arranged and operating substanceiver and connected thereto by rings, formtially as shown and described, forthepnrpose ing a water and a steam chamber, tubes formset forth.

ing a communication between the steam cham- PHILIP ROHAN. ber and the lower part of the receiver through In presence ofthe Water-chamber, drip-pans Within the case GEO. H. KNIGHT,

supported on vertical rods, and tank above SAML. KNIGHT. 

